Templat prompt dan perangkaian

Dalam latihan ini, Anda akan mulai menggunakan dua komponen inti di LangChain: templat prompt dan chain!

Kelas yang diperlukan untuk menyelesaikan latihan ini, termasuk ChatOpenAI, telah dimuatkan untuk Anda.

Latihan ini adalah bagian dari kursus

Mengembangkan Aplikasi LLM dengan LangChain

Petunjuk latihan

Ubah teks template yang disediakan menjadi templat prompt standar (bukan chat).
Buat chain untuk meneruskan templat prompt ke LLM.
Jalankan chain pada variabel question yang disediakan.

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Create a prompt template from the template string
template = "You are an artificial intelligence assistant, answer the question. {question}"
prompt = PromptTemplate.____(
    template=____
)

llm = ChatOpenAI(model="gpt-4o-mini", api_key='')	

# Create a chain to integrate the prompt template and LLM
llm_chain = ____ | ____

# Invoke the chain on the question
question = "How does LangChain make LLM application development easier?"
print(llm_chain.invoke({"question": ____}))

Edit dan Jalankan Kode

Latihan ini adalah bagian dari kursus

Mengembangkan Aplikasi LLM dengan LangChain

SkillTag.level.intermediateSkillTag.label

4.8+

Mulai Kursus Gratis

Welcome to the LangChain framework for building applications on LLMs! You'll learn about the main components of LangChain, including models, chains, agents, prompts, and parsers. You'll create chatbots using both open-source models from Hugging Face and proprietary models from OpenAI, create prompt templates, and integrate different chatbot memory strategies to manage context and resources during conversations.

Exercise 1: Ekosistem LangChain Exercise 2: Model OpenAI di LangChain!Exercise 3: Model Hugging Face di LangChain!Exercise 4: Templat prompt Exercise 5: Templat prompt dan perangkaian

Latihan Saat Ini

Exercise 6: Templat prompt chat Exercise 7: Few-shot prompting Exercise 8: Membuat himpunan contoh few-shot Exercise 9: Membangun templat prompt few-shot Exercise 10: Menerapkan few-shot prompting

Time to level up your LangChain chains! You'll learn to use the LangChain Expression Language (LCEL) for defining chains with greater flexibility. You'll create sequential chains, where inputs are passed between components to create more advanced applications. You'll also begin to integrate agents, which use LLMs for decision-making.

Exercise 1: Sequential chains Exercise 2: Building prompts for sequential chains Exercise 3: Sequential chains with LCEL Exercise 4: Introduction to LangChain agents Exercise 5: What's an agent?Exercise 6: ReAct agents Exercise 7: Custom tools for agents Exercise 8: Defining a function for tool use Exercise 9: Creating custom tools Exercise 10: Integrating custom tools with agents

One limitation of LLMs is that they have a knowledge cut-off due to being trained on data up to a certain point. In this chapter, you'll learn to create applications that use Retrieval Augmented Generation (RAG) to integrate external data with LLMs. The RAG workflow contains a few different processes, including splitting data, creating and storing the embeddings using a vector database, and retrieving the most relevant information for use in the application. You'll learn to master the entire workflow!

Exercise 1: Integrating document loaders Exercise 2: PDF document loaders Exercise 3: CSV document loaders Exercise 4: HTML document loaders Exercise 5: Splitting external data for retrieval Exercise 6: Splitting by character Exercise 7: Recursively splitting by character Exercise 8: Splitting HTML Exercise 9: RAG storage and retrieval using vector databases Exercise 10: Preparing the documents and vector database Exercise 11: Building a retrieval prompt template Exercise 12: Creating a RAG chain Exercise 13: Wrap-up!